Great Black-backed Gull (Larus marinus)

(last update: July 12, 2015)
Coordinators:
Jean-Michel Sauvage (France)
Morten Helberg (Norway)
Nils Helge Lorentzen (Norway)
Mars Muusse (Netherlands)

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Great Black-backed Gull (Larus marinus) JZ38 1cy-2cy: August 2012 & January 2013, Scheveningen, the Netherlands.

Ringed as pullus in June 28 2012 at VIKELEN, Farsund, Vest-Agder, Norway.

below: Great Black-backed Gull (Larus marinus) JZ38 2cy: January 17 2013, Scheveningen, the Netherlands. Picture: Ted van der Knaap.

US: 75-99%, LS: 25-50%, TOT SCAPS: 50-75%. Tertials and coverts juvenile.

below: Great Black-backed Gull (Larus marinus) JZ38 1cy: August 31 2012, Scheveningen, the Netherlands. Picture: Mark Zevenbergen.

US: 0%, LS: 0%, TOT SCAPS: 0%. Tertials and coverts juvenile.